fix getting the release name with lsb release
fix getting the release name with lsb release

This is newly broken in SLES11SP3, so we have to parse the lsb_release
output manually. The code was copied from chef's lsb module.

Change-Id: I97cf1a4e4f937d6c2bea035cc09c8c61d05825d6

tomzo/cookbook-openstack-common,krtyyy/cookbook-openstack-common,openstack/cookbook-openstack-common,tomzo/cookbook-openstack-common,mancdaz/cookbook-openstack-common,SpringerPE/cookbook-openstack-common,krtyyy/cookbook-openstack-common,openstack/cookbook-openstack-common,tomzo/cookbook-openstack-common,krtyyy/cookbook-openstack-common